Figure 3 from: Barroso CX, Pereira de Freitas JE, Matthews-Cascon H, Arruda Bezerra LE, da Cruz Lotufo TM (2020) Molecular evidences confirm the taxonomic separation of two sympatric congeneric species (Mollusca, Gastropoda, Neritidae, Neritina). ZooKeys 904: 117-130. https://doi.org/10.3897/zookeys.904.46790

Figure 3 Colour patterns of shells, opercula, and radulae of the Neritina virginea and Neritina meleagris analysed. The red arrows highlight the differences between the leading edges of colour patterns of both species: N. virginea has the leading edges outlined in heavy black, while N. meleagris has the leading edge outlined in white or black and white. ANeritina virginea_1 BNeritina virginea_2 CNeritina virginea_3 DNeritina virginea_4 ENeritina meleagris_1 FNeritina meleagris_2 GNeritina meleagris_3 HNeritina meleagris_4 I ventral view of shell of Neritina virgineaJ operculum (outer and inner views) of Neritina virgineaK ventral view of shell of Neritina meleagrisL operculum (outer and inner views) of Neritina meleagrisM radula of Neritina virginea (SEM), with rachidian tooth enlarged in the upper left quadrant N radula of Neritina meleagris (SEM), with rachidian tooth enlarged in the upper left quadrant. Abbreviations: l1 first lateral tooth, l4 fourth lateral tooth, m marginal teeth, r rachidian tooth. The specimens with the number "1" are from Camocim beach (Ceará State, NE Brazil) and those with numbers "2", "3", and "4" are from Barra Grande beach (Piauí State, NE Brazil). The numbered specimens of N. virginea (1, 2, 3, and 4) and N. meleagris (1, 2, 3, and 4) are the same specimens used in the phylogenetic analysis of Figure 1. Scale bars: 1.0 mm (A–L); 100 μm (M, N).